A commodity is priced at 50% profit and then sold at 20% discount. The total profit is 200 yuan. How much is the cost of this commodity?

A commodity is priced at 50% profit and then sold at 20% discount. The total profit is 200 yuan. How much is the cost of this commodity?

150%X * 80% - X = 200
Cost X = 1000

Mother bought a computer for Xiao Hong. The original price was 8000 yuan, but now it costs only 15% off. How much cheaper is it than the original price

It's 1200 yuan cheaper than before

The original price of a refrigerator is 2400 yuan, but now the price is reduced by 600 yuan. Now the price of each refrigerator is equivalent to the original formula

2400-600 = 1800 yuan
1800 divided by 2400 multiplied by 100%